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CMI to IAD: distance & flight time
Champaign (University of Illinois Willard Airport) → Washington (Washington Dulles International Airport)
582 mi
936 km · 505 nm
1h 44m
estimated nonstop flight time
+1h
time difference · heading east
See live CMI→IAD fares Phone-only fares on this route — call free
Flight time details
582 miles nonstop takes roughly 1h 44m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- CMI — University of Illinois Willard Airport · Champaign, United States
- IAD — Washington Dulles International Airport · Washington, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near CMI
Frequently asked questions
How far is CMI from IAD?
The flight distance from Champaign (CMI) to Washington (IAD) is 582 miles (936 km, 505 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CMI to IAD?
A nonstop flight takes about 1h 44m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Champaign and Washington?
Washington is 1 hour ahead of Champaign.
What is the cheapest way to fly from CMI to IAD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CMI–IAD that never appear on search engines, with no booking fees.